Railway-crossing frog.



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@Qtrerneys Patenten Aug 2o, mor..

lf: Pouun, 1n. l RAILWAY GRUSSING FROG.

(Appunti ledln 28 1901) no. sag-077..

` Witnesses No. 001,077. 1 VPaf'en'd Aug. 20,1901.`

, E. PouLm, 1n.

RAILWAY CHUSSING FROG..

(Applicneion med mar. 2s. 1901.)

(N0 Model.)

3 Shgets-Shei 3.

. 1,4/6? .92a a my L?? @Miorneys PATENT GFFICE.

jETIENNEfPOULIN, JR., OF ST. GERMAIN DE GRANTHAM, CANADA.

RAILWAY-CROSSING FROG.

` SPECIFICAT-ION forming part of Letters Patent No. 681,077, datedAugust 20, 1901.

Application tiled March 28, 1901.

` To all whom it may concern: Beit known thatI, ETIENNE PoULnv, J r., asubject of the King of Great Britain, residn ing at St. Germain deGrantham, county of f Drummond, Province of Quebec, Canada,

` have invented certain new and useful` Imi provements inRailway-CrossingFrogs; and Ido hereby declare thatthe following is afull, clear, and exactdescription of the invenf te tion, such as willenable others skilled in the art to which it appertains to make and usethe same. n n l n My invention relates to improvements in `l trailwaycrossing frogs wherein two tracks of @V` a railway cross eachother at a right angle,`

` and the object that I have in view is to pron i i Vide a continuousbearing for the wheel- 1 l tread While passing the division at theinteri section of the rails. A i i n j `2e A further object of theinvention is the provision of means for automatically shifting the pposition ofthe tread-bearing member by the action of the wheels on'anapproaching train, whereby said member is adapted to occupy an operativerelation to either of the two sets or pairs of rails at the crossing andto afford the desired continuons tread bearing for trains traveling ineither direction across the t crossing. n n

3o` 'With these ends in view the invention "consists in the novelconstruction and arn rangement of parts, whichwill be hereinafter morefullyidescribed and claimed.

p In the accompanying drawings, forming a part of this specification,Figure 1 is a plan p view of `my improved railway-crossing frog.

Fig. 2 is a side elevation thereof looking at p the lower side ofFig. 1. Fig. 3 is a section on the line 3 3.of Fig. 1. Fig. 4 is anothersection on thedotted line 4 4 of Fig. 1. Fig. 5 is a plan view of thebed. Fig. 6 is an end `elevation thereof. Fig. 7 is a cross-section onthe line 7 7 of Fig. 5. Figs. 8 and `9 are perspective `views of iportions of the frog. Fig. 10 is a perspective view'of one Wheelactuatedbar and its arm.

The same characters of reference denote like and correspondingparts ineach igure of the drawings. n

5o I will first proceed to describe the bed 5, i on which all `of theoperating parts of the frog are supported. This bed is provided with a`post 11.

Serial No. 53,203. (No model.)

raised bearing-surface 6, having an extension `7. Anotherbearing-surfaceS is provided on the bed, and the extension 7 and thebearingsurface 8 have the fulcrum-posts 9.

10 11 designate the two arresting-posts, which are fast with the bed anddisposed between the bearingsurfaces 6 8, and the post 10 has itsactive` surface a disposed at a right angle to the corresponding surfaceb of the 12 designates the tread-bearing member,

`the same being arranged to rest upon the bearing-surface 6 and to beshiftable with respect,4 to the active faces ce b of the arrestingposts10 1l. (See Fig. 1.) This tread-bearing member is represented in theform of a triangular block," which is arranged for its apex to lieadjacent to the two posts l0 11, and said shiftable member 12 has twoactive `faces c el, the former of which is adapted to lie in the planeof the active face a of the post 10 when said member 12 occupies theposition shown in Fig. 1, but when the tread member is reversed orshifted to its opposite position the active edge d of said member liesin the plane of the `active edge h of the other post, 11, as will beclearly understood byreference to Fig. 1. l

The broad essential feature of `this invention lies in the shiftabletread-bearing inember adapted to have either of its edges c d disposedin operative relation to two sets of rails which cross each other at anangle, preferably at a right angle, and any suitable means may beadopted for automatically shifting the position of this tread-bearingmember by an approaching train, whereby the member l2 is adapted toafford a support for the wheel-treads and the edge cor d is so disposedwith relation to the rails that the wheel-flanges will not strike themember 12 l in line with each other and with one rail of a track. Theother pair of bars 14 14` are also in line with each other and with onerail of a crossing track. The pairs of wheel-actuated bars are disposedso that one edge of the bars IOO of each.pairwilloccupy-anoperativefrelationi postf11. Trains `on the same track 4are free to theactive edge of one post. vIn the exam-- ple shown the bars 13 13a aremounted on the bed so as to bring one edge thereof in the plane of theactive face -b of the post 11, and in like manner theother pair` of bars14 14a are mounted so as to bring one edge Ythereof in the plane of theactive face a of the other post 10. Each wheel-actuated bar is hung at apoint intermediate of its length on a fulcrum-post 15 by means of thepivot-pin 15,

and said bars are provided with arms'as follows: The bar 13 has an .arm16, which ex. tends toward an arm 17 on the bar 14a, and

these two arms 16 17 are hung at their inner adjacentends on shortposts20 20by means of the pivots 21. The bar 14 is provided with an arm18, which extends inwardly toward a similar arm 19 on a bar 13a, andthese two arms are fulcrumed at their inner adjacent endson the shortposts 22 by means of the pivots 22a. p

23 24 designate Vthe evener-levers, each of which is fulcrumed at itsmiddle, as at 25, on th'e short post 26. end portions pivoted, as at 27,to the pair of arms16 17 of the bars 13 14, but the otherv evener-lever24 has itsend portions pivoted, as at28, to the arms 18 19 of the barsV13a 14.

the latter.

29 30 designate the actuators for theshiftable tread-bearing member, theactuator' 29 being pivoted, as at 9, on the post of the bearing-surface8, while the other actuator'` 30 is pivoted, as at 9, on the extension 7of. The actuator 29 is op` eratively connected with the arms 16 17 ofthe bearing-surface 6.

the bars 13 14a by means of the links 31 32,

the same being pivoted at their outer endsat` 33 33a to said arms 16 17,while the inner ends 37, to -said actuator 30, while the other outer`ends of the links are pivoted at 3S 38a to the arms 18 19, respectively,ofthe bars 14 13a.

With the pivoted bars 14 14au depressed to oc! cu py substantiallyhorizontal alinement -with one rail of the track, the other pair ofpivoted bars 13 13a are raised to inclined positions, .and the severalactuating devices are made to throw the tread-bearing member 12 into theposition shown by Fig. 1, wherein the' edge c of said member lies flushwith the active edge ct of the post 12 and with the edges of thedepressed bars 14 14, wherebya trainV on the track-rail with which thebars 14 14a are in alinement is adapted to have its wheeltreads rideupon the bars 14 14, the post 10 and the member 12, while the flanges ofthe wheel are free to pass through the space be-` tween said edge c ofthe member 12 and the The evener-lever 23-has its i It will be observedthat each evener-le-v ver has each end portion pivoted to a wheelbar arm'at a point intermediate the length of to pass-in either direction overand through the frog without disturbing the relation of- .the.parts; butwhen a train passes on the other track it crosses the first track at anangle through thefrog, and the parts are automatically shifted in thefollowing manner: As the wheel of the approaching train strikes one ofthe bars 13 or 13a both of said bars 13 13a are simultaneously depressedthrough the action of the connecting mechanism,

while thebars 14 14a are elevated from a horizontal to inclinedpositions, thus reversing the positions of the pairs of bars. Thisdepression of the bars 13 13a sets in motion the intermediate connectingmechanism by which theposition of the tread-bearing member 12 isreversed, whereby said member is shifted so as to bring its active edgecinto alined `relation with the corresponding edge b of the post 11 andwith one edge of the bars 13 13, The gap or space between themember 12and the post 11 is closed bythe shifting .of the member, and at the sametime a space is opened between the edge d and the post 10,

so as to permit of the passage of the wheelvflanges between the memberand said post 10, while the edge d of said member affords Ithe desiredcontinuous tread-bearin g through the frog.

Changes within the scope of the -appended claims may be vmade in theform and proportion of 4 some of the parts, while their essen `t-ialfeatures are retained and the spirit of the invention is embodied. HenceI do not desire to be limited to the precise form of all the parts asshown, reserving the right to vary therefrom.

1. In a railway-crossing frog, the combina tion of wheel-actuated barshung tov vibrate on horizontal axes and arranged in pairs and withthebars of one pair disposed in the same vertical plane, limiting-posts inthe planes of the respective pairs of bars, a shiftable treadbearingelement in active relation to one pair of bars and one limiting-post,actuators disposed on opposite sides of the tread-bearing element, andconnections between the actuators and the bars of opposite pairs, sub--stantially as described.

2. In a railway-crossing frog, the combination of limiting-posts havingtheir active faces disposed in planes intersecting at an langlecorresponding to the position of crossing `trackrails,a shiftableelement having its ac able element, substantially as and for thepurposes described.

3. In a railway-crossing frog, the Acombination of two'pairs ofwheel-actuated pivoted bars disposed at an angleone to the other, alinked tothe arms of opposite pairs of wheelro shiftable tread-bearingelement arranged in l i operative relation to the bars of one pair, in-

wardly-extending arms on the bars of the opposte pairs, evenaar-leverseach hung between the bars of opposite pairs and having operatveconnection with the arms of said bars,

and the actuators independently pvoted to y the shiftable tread-bearingelement and each actuated bars, substantially as and for the purposesdescribed.

In Witness whereof I have hereunto set my hand in the preseneeoftwoWitnesses. i

ETIENNE 'POULIN J R. Witnesses:

J. A. MARION, T. MYNARD.

